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FOSSBilling

by FOSSBilling

FOSSBilling is a free billing and client management system that you host yourself. It automates invoicing, payments and client communication for online service businesses such as web hosts.

Worth a lookEstablished, with a few things to check (listed below).

View on GitHubProject website

Stars
1.7k
Licence
Apache-2.0
Runs on
A small server
Setup
Moderate
Language
PHP
Age
1626 days

What you can do with it

  • Send automated invoices and payment reminders to clients
  • Take payments through multiple payment gateways
  • Sell hosting, software licences, digital downloads or subscriptions and keep client records in one place

Could replace

  • WHMCS

Our suggestion based on what it does, not a feature-by-feature comparison.

Make money with it

Someone could start a small web hosting or reseller business and use it to handle sign-ups, invoicing and recurring payments, or offer paid setup and maintenance of it to other hosts.

An idea, not financial advice. Check the licence before charging for anything built on it.

Ways a business could use it

  • Run billing and client accounts for a small hosting or web services business without paying for a licensed billing platform
  • Manage recurring subscriptions and invoices for software licences or digital products

Can you use it commercially?

Free to use, change and sell, including in paid products. Keep the copyright notice.

Not legal advice. Read the project's licence file before building a product on it.

Getting it running

It installs on a standard LAMP or LEMP web server with PHP and a MySQL or MariaDB database, following the step-by-step guide in the official documentation.

Follow the official instructions in the project README.

Things to check

  • The README says it is beta, with rough edges and limited support
  • Payment gateways may charge their own fees and need separate accounts
  • You are responsible for server security and updates when handling client and payment data

Who's talking about it

Checked 30 Oct 2026. Summary drafted by AI from the project's README.

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